2007A&A...471L..25S


Query : 2007A&A...471L..25S

2007A&A...471L..25S - Astronomy and Astrophysics, volume 471L25-27 (2007/8-4)

Transient jets in V617 Sagittarii.

STEINER J.E., OLIVEIRA A.S., TORRES C.A.O. and DAMINELI A.

Abstract (from CDS):

Some of the luminous Compact Binary Supersoft X-Ray sources (CBSS) have shown indications of jets, also called satellites due to their appearance in the spectra. In V Sagittae (V Sge) stars, the galactic counterparts of the CBSS, such features have been reported only for WX Cen. If V Sge stars are indeed the analogs of CBSS, one may expect transient jet emission in other objects of this class. Spectroscopic observations of the V Sge star V617 Sgr have been made, both at high photometric state and at decline. We show that V617 Sgr presents Hα satellites at high photometric state with velocities of ±780km/s. This feature confirms, once more, the CBSS nature of the V Sge stars, however the details of the spectral characteristics also suggest that the two groups of stars display some intrinsic spectroscopic differences, which are likely to be due to a selection effect related to chemical abundance.

Abstract Copyright: ∼

Journal keyword(s): stars: binaries: close - stars: neutron - stars: individual: V617 Sgr - stars: emission-line, Be

Simbad objects: 10

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Number of rows : 10
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 V* QR And CV* 00 19 49.9252996176 +21 56 52.169584416   12.38 12.73 11.86   Ss 139 0
2 2E 0035.4-7229 XB* 00 37 19.6683991960 -72 14 13.187852739   20.0 20.2     ~ 104 0
3 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
4 SV* HV 5682 XB* 05 13 50.7835871075 -69 51 47.483214339     16.566 16.606 16.62 ~ 321 0
5 RX J0537.6-7033 XB* 05 37 43.0 -70 34 15           ~ 33 0
6 2E 1550 XB* 05 43 34.1600044704 -68 22 22.191505716   15.9   17.2 16.54 ~ 332 0
7 OGLE LMC-SC20 113500 EB* 05 46 46.5466334000 -71 08 53.755688443     19.163   18.886 ~ 263 0
8 RX J0925.7-4758 XB* 09 25 46.0017018216 -47 58 17.340963384   19.2       ~ 91 0
9 V* WX Cen WR* 13 12 52.3764011184 -63 23 45.851196156   13.80 13.40     WN3h+WC4 55 0
10 WR 109 WR* 18 07 50.8972634088 -35 10 25.118702292           WN3 65 0

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